Defiberating-machine.



A. W. MONTGOMERY, DECD.

a, e. MQNTGOMERYA. sxzcunux. DEFIBERATING MACHINE APPLICATION FILED APR. 19. ms. Patented. F61). 26, 1918.

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' nueufo c A. W. MONTGOMERY, DEC'D. a. e. murneo'maav, EXECUTRIX.

DEFIBERATING MACHINE.

APPLICATION FILED APR. i9. me.

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Patented Feb mm KN mounted ALPHEUS W. MONTGOMERY, OF FLUSHING, NEW YORK; GRACE GREENWOOD MONT- GOMEBY EXEOUTEIX 0F SAID ALPHEUS W. MONTGOMERY, DECEASED.

lDEFIBEBATING-MAOHINE.

Specification of Letters Patent.

Patented Feb. 26, 191,.

Application filed April 19, 1916. Serial No. 92,168.

To all whom it may concern."

Be it known that I, ALrHnUs W. MONT- cozunnr, a citizen of the United States, residing at Flushing, Long Island, in the county of Queens and State of New York, have invented certain new and useful Improvements in Defiberating-lilachines, of which the following is a specification.

My invention relates to new and useful improvements in machines for the recovery of the fiber existing in the stalk or trunk of the banana tree, in such form as to render it available for use in the making of paper, and the object of the invention is to provide a machine which will efficiently accomplish the purpose stated. I

The invention consists in the improvements to be more fully described hereinafter and the novelty of which will be particularly pointed out and distinctly claimed. I have fully and clearly illustrated my invention in the accompanying drawings to be taken as a part of this specification, and wherein: V Figure 1 is a view in side elevation of a machine embodying my invention,

Fig. 2 is a vertical longitudinal section through the machine shown in Fig. 1.

Fig. 3 is a longitudinal detail section through an improved picker roll embodying one of the features of my invention,

Fig. 4 is adetail plane 618W of one of the strips carrying blades and teeth of an improved picker roll forming part of my invention.

Referring to the drawings by characters of reference, 1 designates a base frame upon the upper portions of one end of which are longitudinally extending side frames 2 supporting pairs of upper and lower alining bearings 3 to receive the journals or gudgeons of rolls for crushing and treating the banana stalk or trunk to recover the fiber therefrom. These pairs of rolls, as shown, are arranged in succession lengthwise of the machine, there preferably being three such pairs. The first pair of rolls is shown at 4, 4, said rolls being spaced apart a suitable distance to permit of the stalk or trunk being received therebetween, and the surfaces of said rolls are corrugated longitudinally, as indicated at 5, in order to break up or crush the trunk to loosen the fiber therein from the other materials and substances composing the same.

The second set of rolls is shown at 6, 6, and are also arranged with their surfaces spaced apart from each other, but at a distance less than the space between the rolls 4, 4, said rolls 6, 6, being also corrugated longitudinally, as shown at 7, but the corrugations being preferably finer than those of the rolls 4 so as to further crush and break up the stalk and increase the separating action of the fiber therefrom. The thirf. set of rolls is shown at 8, 8, said rolls 8, 8, being arranged with'their surfaces in substantial contact, and being preferably smooth. The function of the rolls 8, 8, is to squeeze the moisture out of the crushed stalk or trunk after the latter has been crushed or macerated by the rolls 4, 4, and 6, 6.

The sets of rolls above described are all positively driven by any suitable means so as to draw the stalk or fiber in between the same and feed the stalk from one pair of rolls to the other successively. I have shown the driving means as consisting of a belt pulley 9 driven from any suitable source of power, and carried by a shaft 10 bearing a beveled gear 11, which meshes with a beveled gear 12 on a shaft 13, mounted in bearings 13 on the frame 1, the shaft 13, carrying a worm 14 meshing with a worm gear 15 carried by the gudgeon 16 of the lowermost of the pairs of rolls 8. This gudgeon 16 carries a gear wheel17 meshing with a gear wheel 18 on the gudgeon 19 of the uppermost roll of the pair of rolls 8, 8, the arrangement being such that the rolls 8 are driven in the direction of the arrows, as shown in the drawings.

Each of the rolls 8, 8, also carries a sprocket wheel 20, 20, which drive respectively sprocket chains 21, 21, carried by sprocket wheels 22, 22, on the gudgeons 23 of the rolls 6, whereby the latter are driven in the direction of the arrows, as shown in Fig. 1. Each of the rolls 6, 6, also carries a second sprocket wheel 24, 24, which drive chains 25, 25, passing over sprocket wheels 26, 26, carried respectively by each of the rolls 4, 4, whereby the latter are driven in the direction of the arrows, as shown in the drawings.

The operation of the pairs of rolls just described is as follows: i

The first pair of rolls 4, 4, crushes the stalk or trunk as the latter comes from the field, or in its natural state, thereby loosening the fiber and breaking up the cells, il cluding the water cells. The action performed by the second set of rolls 6, 6, is to intensify or carrya step farther thesame function performed by the first set of rolls. The third set 8, 8, operates to farther crush and reduce the pulp and squeeze the Water or other moisture out of the same.

When the stalk has been crushed, as described, and the moisture and water squeezed from the pulp, the fiber is torn apart, or COmbed out, so as to render it lit for use in the manufacture of paper. That part of the mechanism for accomplishing this purpose is preferably constructed as follows:

At an intermediate point on the frame 1, is arranged an inclined table 27, the lower endof which is located at a point beneath the engaging faces of the rolls 8, 8, from which point said tablevis inclined upward, as indicated in the drawings. At each end ,of'this table is arranged a roller 28, 29, over which passes a belt'or apron 30 cf any suitable material, such, for instance, as canvas or rubber belting. This belt is adapted to receive the crushed pulp delivered from the rolls 8, 8, and being driven in the direction of the arrow, to carry the pulp up the incli ed b e. At the upp e d o the ta le is located a gravity roner 31 which engages the upper surface of the belt over the roller 29 so as to further squeeze from the pulp moisture which may remain therein after being treated by the rolls 8, 8. The journals of which are arranged in slotted arms .3l ,'to permit of movement of said roller to.- ward and away from the said belt and roller 29. The material squeezed between the roll,- ers 29 and 3l passes into a concave or shell :32 beneath which turns a pin-roll 33, the latter turning in the direction of the arrow, as shown in Fig. 2, in order to carry or feed the fiber from the concave 32, to a picker roll 35 cooperating with the pin-roll 33 and with the rear edge34 .Of the concave. The said picker roll 35 of considerably larger diametcr than the feed roller and constructed to comb out the fiber and break it up for use, and also to remove or scrape the silicon from the fiber. For this purpose I make the picker roll of novel construction, the same consisting of alternate strips of longitudinally arranged pins 36 and lbngitudinally extending continuousstrips or blades 37 also extending longitudinally of the roll 35 and parallel to the pin strips. The picker roll consists of a cylindr'icalshell 35 supported :by spiders 35 the pins 36 and blades 37 being carried by wooden strips 36, respectively, which strips are arranged on the circumference ofthe shell 35 so as to extend longitudinally thereof and being secured in place by fastening bolts 51," passing through the strips and the said shell whereby the strips are clamped to the shell as a shownin detail in Fig. 3. By reference to Fig. 4; it will be seen that the longitudinal rows of pins 36 are arranged so that the pins of one row will be staggered with reference to those of an adjacent row, and the blades 37 are arranged between the rows of pins, and each strip 36 may carry one or "more rows of pins with one or more inter.- vening blades. By this arrangement of alternate sets of pins and strips, the pins operate to comb out the fiber and break it up for 1 ,5 while the blades coijperate with the fiber while the latter is held back by the shell roll or feed roll to scrape the silicon from the fiber and cause it to b delivered in a light-and fiufiy condition. The shell or feed roll 33 is driven at a slower circumferential speed than the picker roll v35 so that the fiber or pulp is held back by the feed .or shell roll in order to enable the picker roll to pick and tease the fiber to produce the proper picking effect. 1 preferably have the fe d roll about twelve inches in diameter and rotated at a rate of about twelve times a minute, while the picker roll is preferably about four feet in diameter and revolves at a rate of about two hundred times a minute.

The picker roll 35, the feed roll 33 and the roll 29 are driven by any suitable means which may be as follows:

On one end of the picker roll shaft 38 is a driving pulley 39 adapted to be driven by a belt from any suitable source of power, and on the opposite end of the picker roll shaft is a small belt pulley 40 which drives a belt 41 passing over said pulley 40 and a larger belt pulley {t2 having a bearing on the side of the machine adjacent the inclined table 27 On the shaft of the belt pulley 42 is a mall pinion 43 meshing with an in.- termedlate gear Wheel 45L also mounted in .bearings (not shown) on the side of the machine and having on its axle a small pin.- ion meshing with a large gear wheel :16 earned by one end of the journal or shaft 4;? of the feed roll 33. On the opposite end of the shaft 47, from that carryin the gear 46, is a smaller gear 48 meshing wit 1 an idler gear 49 journaled on the frame, which idler meshes with a gear v50 on the axle of the roll 29 by means of which the latter is driven to cause the belt to feed the material up the table 27 to the feed roll 33.

The fiber upon being treated by the picking roll is dried by any suitable means and is then in condition for use in the manufac e f rop or Man Paper- What I claim and desire to secure by Letters Patent of the United States is l,- A machine for the recovery of fiber from the trunk or stalk of the banana tree comprising crushing rolls, expressing rolls, and a picking and teasing roll provided with alternate sets of longitudinally extending pins and scraping blades, and a holdback feed roll delivering the material from the crushing rolls to the said picker roll.

2. A machine for the recovery of fiber from the trunk or stalk of the banana tree comprising pairs of corrugated crushing rolls arranged in succession, the rolls of succeeding pairs being closer together than preceding rolls and having finer corrugations than said preceding rolls, expressing rolls having smooth surfaces to receive the material from the crushing rolls, a holdback feed roll receiving the material from the expressing rollsand a picker roll c0- operating with the said feed roll, said picker roll having longitudinally extending sets of pins and scraper blades arranged alternately between said sets of pins.

3. A machine for the recovery of fiber from the trunk or stalk of the banana tree comprising crushing rolls and expressing rolls arranged in sequence, a conveyer, supplementary expressing rolls and a pin roll at the delivery end of the conveyer, and a picking roll rotating at greater speed than the pin roll, the peripheral faces of the pin and packing rolls being arranged in proximity for coaction.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

ALPHEUS W. MONTGOMERY.

Witnesses:

M. E. MCNINCH, G. G. HEYLMUN.

lfiopica or this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

